E-liquid is a genuinely short ingredient list once you break it down — most bottles are built from just four categories, each doing a specific, distinct job. Knowing what each one actually does makes reading a bottle's label far more useful than just skimming past it.
A thin, low-viscosity base liquid that carries flavor efficiently and produces a stronger, more noticeable throat hit. PG is also widely used as a base ingredient in many food and pharmaceutical products outside of vaping, which is part of why it's a common default base.
A thicker, naturally sweet base liquid mainly responsible for vapor volume and density. Higher-VG blends produce visibly more vapor with a smoother, softer throat hit than PG-heavy blends, which is why cloud-focused setups typically favor high-VG e-liquid.
Present in varying concentrations, or left out entirely in nicotine-free blends. Nicotine salts specifically change how nicotine is absorbed compared to standard freebase nicotine — we cover that distinction in more depth separately, since it affects both throat feel and how quickly effects are felt.
Food-grade flavoring compounds — the same broad category used across many other consumer food and beverage products — responsible for taste alone, with no direct effect on vapor volume or throat hit. Flavor concentration and quality vary considerably between brands, which is a large part of why the same nominal flavor can taste very different bottle to bottle.
We cover the full breakdown of how the balance between these two base liquids changes the actual experience elsewhere — the short version is that it's the single biggest factor in how a given e-liquid feels and performs, independent of flavor or nicotine strength.
PG used in e-liquid is the same broad category of ingredient used as a base in various food and pharmaceutical products, though vaping-grade PG is specifically manufactured and tested for that use.
PG concentration is the biggest factor in throat hit — a higher-PG blend produces a noticeably stronger throat sensation than a high-VG one, independent of nicotine strength or flavor.
PG and VG (in some ratio) and flavoring are present in virtually every e-liquid; nicotine is the one variable ingredient, present in some concentration or left out entirely in nicotine-free options.
Before you pick your next bottle, it's worth checking this month's verified coupon codes — every code listed is tested against checkout and dated, not just pulled from a feed.
Treetvapours